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I started having problems immediately after upgrading to Thunderbird 102.0 (32-bit) on Windows 7. I suspect some of the settings from the previous installation were not transferred correctly to the new version.

First, I couldn't even get into my email server, getting the error "Server does not support the selected authentication method." After changing some of the server settings, I was able to get into my email.

Then, a couple of my message filters started throwing an error "The message could not be filtered to folder ... because adding a message to it failed. Verify that the folder is displaying properly or try to repair it from the folder properties." I repaired the folder, and then the filter seemed to work.

Now, every message going through any filter appears to be failing with this message. Literally hundreds of messages are not getting filtered and are throwing this message (I get 200 to 400 messages daily).

Is there any way to back out of Thunderbird 102.0 and repair my entire saved messages file? HELP!!!

A critically important bug!

Messages in local inbox (it is possible that the bug occurs in other or all local mailboxes too) get completely overwritten by Thunderbird 102 with parts of neighboring messages or by truncated content from the same message. The damage is irrecoverable and irreversible - original content is permanently lost. Message subject still appears in the list of messages, but in the message view pane there is no subject and no message, or just random HTML source parts of another message. Destroyed messages are OK after downloading and display correctly until overwritten under unclear circumstances. In one occasion, there was a monster message created by merging 2 messages into one - with a subject line and top part of the message header from the first message and bottom part of the header and broken content of the second message (3-rd attachment). "Folder properties"/<Repair folder> does not restore the lost content.

All of the folders are not being compacted when you do File->compact folders on the account in version 102.0.1.

It worked fine in earlier versions.

Is there a new way to do it?